Who says environmentalism and baseball fever don’t mix? On Tuesday afternoon, just before the San Francisco Giants trounced the Phillies in the NLCS game 3, nonprofit Save the Bay flew a banner over AT&T Park asking Cargill and DMB not to develop the former Saltworks site in Redwood City. The timing was about more than baseball though; the Redwood City Planning Commission also had a scoping meeting on the project that evening.